Oil well cup saver



ATTORNEY 6 em a a 5 a- 3 2 A 1 .I n M 2 51 1111.11w1.1m: m1w1 1111111131 wn w y M L m 1: 1 u n n; I .m J IIIZ 4 F A w 11:: f, 1 :1 1

Patented Mar. 24, 1936 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to deep well pumps and more particularly to adevice for increasing the life of the pump cups and similar moving partsof the pump, and has for the primary object the 5 provision of meanswhereby the movements of the pump sucker construction and sections ofthe pump tubing will not agitate the sand and other sediments of thewell permitting the latter to remain undisturbed at the bottom of thewell so 10 as not to rise with the fluid and come in contact with thecups and other moving parts thus eliminating cutting or wearing of theparts by the sand and like sediment.

With these and other objects in View this in- 15 vention consists incertain novel features of construction, combination and arrangement ofparts to be hereinafter more fully described and claimed.

For a complete understanding of my invention,

reference is to be had to the following description and accompanyingdrawing, in which The figure is a fragmentary vertical sectional viewshowing a pump located in a well with my invention applied thereto.

25 Referring in detail to the drawing, the numeral l indicates a welland 2 the pump tubing which in this instance includes a pair ofsections, one of which is of comparatively short length and rests uponthe bottom of the well and has a series 30 of perforations 3 to admitthe liquid of the well to the interior thereof. The other or uppermostsection ext-ends from the surface of the well downwardly into the latterand is spaced from the upper end of the lowermost section and has 35reciprocally mounted therein a sucker construction 4 including the usualcups 5 contacting with the walls of the uppermost section of the tubingand the latter-named section has a standing or check valve 6 and thelower end is exteriorly 40 screw threaded to have threaded thereon acollar 1. The upper end of the lowermost section is also exteriorlyscrew threaded to receive an internally screw threaded collar 8. Thecollars I and 8 are employed for connecting my invention 45 to thesections of the tubing and consists of a pipe or tube 9 which isthreaded in the bore of a head Ill. The round head ID has exteriorthreads to be engaged by the interior threads of the collar 1', and thesaid collar is also threaded on the 50 lower end of the tubing section2, and forces the head [0 against and rigidly associates the same withthe said tubing section 2. The pipe or tube 9 enters the lower sectionof the pump tubing and has threaded to its lowermost end a stop collarll. Resting on the top of the lower tube section there is a round headl2, substantially similar to the head Ill. The head In has a smooth borethrough which the pipe 9 freely passes. The exterior threads of the headID are engaged by 5 the sleeve 8 which is also screwed on the outer endof the lower tube section. The head l2 may be provided with suitablepacking between itself and the tube 9 and the latter places the uppersection of the pump tubing in which the sucker 10 constructionreciprocates in communication with the lower pump section so that theliquid therein may be drawn up and discharged from the well by way ofthe upper pump tube section during the reciprocation of the suckerconstruction and during the reciprocation of the latter the uppermostsection of the pump tubing moves upwardly and downwardly which movementis interrupted or not transmitted to the lower section due to theslidable connection between the tube 9 and the head l2, consequentlythese movements will be prevented from agitating the sediment at thebottom of the well which lies between the walls of the well and theexterior face of the lowermost well tube section below the perforations3. Thus it will be seen that the liquid entering the lowermost sectionof the well tubing will be free of sediment and thereby eliminate thepossibility of the sediment rising and contacting with the suckerconstruction 4 and valve 6, permitting these parts to successfullyoperate over a long period of time.

section is perforated and the upper section has a standing valve and areciprocatory plunger; of a pipe member between said sections, a roundthreaded head having a bore in which the upper end of the pipe isthreaded an interiorly threaded collar engaging the head and the threadsof the upper tube section for holding the head thereagainst, a roundexteriorly threaded head resting on the upper end of the lower tubesection and having a round bore which receives the pipe therethrough, aninteriorly threaded collar screwed on said head and said lower tubesection for holding the head on said section, and a stop elementremovably screwed on the end of the pipe received in the lower tubesection.

GUY A. MAHANEY.

